Linked Life Data

8268538

Source:http://linkedlifedata.com/resource/pubmed/id/8268538

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1994-1-31
pubmed:abstractText
Lidocaine is a sensitive substrate for evaluating liver P450 function. In this study, metabolism of lidocaine by xenogeneic hepatocytes in a hollow fiber, bioartificial liver was measured under in vitro conditions (n = 6) and in an anhepatic rabbit model. Animals in the treatment group (n = 6) received hemoperfusion by a bioartificial liver that contained 100 million rat hepatocytes. Other anhepatic rabbits received no hemoperfusion (n = 3) or a bioartificial liver with no cells (n = 3). Lidocaine clearance was 7.0 +/- 0.6 ml/min, and the half-life of lidocaine was 5.6 +/- 0.8 hr under in vitro conditions. Conversion of lidocaine to 3-hydroxy-lidocaine was confirmed in vitro and accounted for 46% of lidocaine elimination in the hepatocyte bioartificial liver. During in vivo application of the bioartificial liver, pharmacokinetic parameters of lidocaine metabolism, including drug half-life and metabolite formation, were significantly improved in anhepatic rabbits. 3-Hydroxy-lidocaine profiles verified the activity of a P450 isozyme expressed preferentially by rat hepatocytes in the bioartificial liver. We conclude that hepatic P450 activity was provided by xenogeneic hepatocytes during in vitro and in vivo applications of a bioartificial liver.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1058-2916
pubmed:author
pubmed:issnType
Print
pubmed:volume
39
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
M252-6
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:articleTitle
Pharmacokinetic analysis verifies P450 function during in vitro and in vivo application of a bioartificial liver.
pubmed:affiliation
Department of Surgery, University of Minnesota, Minneapolis.
pubmed:publicationType
Journal Article, In Vitro, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't